Is Molten Sentry legal in Standard, Modern, and Commander?

Molten Sentry is legal in: Modern, Legacy, Vintage, Commander.

Molten Sentry

Q: What type of card is Molten Sentry?

Molten Sentry is a Creature — Elemental. Its oracle text reads: "As this creature enters, flip a coin. If the coin comes up heads, this creature enters as a 5/2 creature with haste. If it comes up tails, this creature enters as a 2/5 creature with defender."

Creature — Elemental

As this creature enters, flip a coin. If the coin comes up heads, this creature enters as a 5/2 creature with haste. If it comes up tails, this creature enters as a 2/5 creature with defender.

Set Ravnica: City of Guilds

Rarity Rare

Mana Value 4

Artist Kev Walker

Collector # 136

Scryfall Gatherer